• 文献标题:   Two-dimensional semiconducting nanostructures based on single graphene sheets with lines of adsorbed hydrogen atoms
  • 文献类型:   Article
  • 作  者:   CHERNOZATONSKII LA, SOROKIN PB, BRUNING JW
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Russian Acad Sci
  • 被引频次:   52
  • DOI:   10.1063/1.2800889
  • 出版年:   2007

▎ 摘  要

It is shown that lines of adsorbed hydrogen pair atoms divide the graphene sheet into strips and form hydrogen-based superlattice structures (2HG-SL). We show that the formation of 2HG-SL changes the electronic properties of graphene from semimetal to semiconductor. The electronic spectra of "zigzag" (n,0) 2HG-SL is similar to that of (n,0) carbon nanotubes and have a similar oscillation of band gap with n, but with nonzero minimal values. The composite dual-periodic (n,0)+(m,0) 2HG-SLs of zigzag strips are analyzed, with the conclusion that they may be treated as quasi-two-dimensional heterostructures. (C) 2007 American Institute of Physics.